Fiber tube rolling machine



May 7, 1935.

H. J, DAvls FIBER TUBE ROLLING MACHINE INVNrroR ATTORNEY Filed Sept. 2, 1930 14 Sheets-Sheet l .lllllllll. I I I I l l l I l l l larf U ww l w. w1. .1 HE N s h. M %m. mx illd EN( NW mm( May 7, 1935- H, J. DAvls FIBER TUBE ROLLING MACHINE Filed Sept. 2, 1930 14 Sheets-Sheet 2 INVENTOR May 7, 1935 H, .1. DAvls 2,000,065

FIBER TUBE ROLLING MACHINE.

Filed sept. 2, 19:50 14 sheets-sheet. 5

INVENTOR A.; IORNEY May 7, 1935. H. J. DAVIS FIBER TUBE ROLLING MACHINE Filed Sept. 2, 1930 14 Sheets-Sheet 4` vg l A'l TORNEY May 7, 1935. H, J. DAvls FIBER TUBE ROLLING MACHINE 14 sheets-sheet 5 F'iled Sept. 2, 1930 ,Lm ATTORNEY May 7, 1935.

H. J. DAvls 2,000,065

FIBER TUBE ROLLING MACHINE Filed Sept. 2, 1930 14 Sheets-Sheet 6 INVENTOR.

@277er @j Day/QS B Y my 72% 2f A TTORNEY.

' May 7, 1935.

H. J. DAvls 2,000,065

FIBER TUBE ROLLING MACHINE Filed Sept. 2, 1930 14 Sheets-Sheet '7 May 7, 1935. H. J. DAvls FIBER TUBE ROLLING MACHINE Filed sept. 2, 1930 y 14 Sheets-Sheet 8 May 7, 1935- H. J. DAvls FIBER TUBE ROLLING MACHINE Filed Sept. 2, 1950 14 Sheets-Sheet 9 INVENTOF( May 7, 1935. H, J, DAvls 2,000,065

FIBER TUBE ROLLING MACHINE Filed Sept. 2, 1930 14 Sheecs-Sheel 10 ggf/,

e; bw YB N SJ o O f M T NN: N g s I lINVENTOR ff/we/L/ay/ O un May 7, 1935. H, J. DAVIS FIBER TUBE ROLLING MACHINE 14 sheets-sheet, 11

Filed Sept. 2, 1930 May 7, 1935 H. .1. DAvls 2,000,065

FIBER TUBE ROLLING MACHINE Filed Sept. 2, 1930 14 Sheets-Sheet l2 /XSLNNENTOR z j@ /Wffy jMgNEY May 7, 1935 H. J. DAvls FIBER TUBE ROLLING MACHINE Filed Sept, 2, 1950 14 Sheets-Sheet 13 INVENTOR May 7, 1935. H. J. DAVIS FIBER TUBE ROLLING MACHINE Filed Sept. 2, 1930 14 Sheets-Sheet 14 R, Y m M R W, m A

Patented- May 7, 1935 ambas man 'rune nomma mom I Homer J. Dub, Del.

^ Appucsutnsgpmm z, 1m. sani No. mais ss cum. (ci, s1-) This invention relates to a tube rolling machine and more particularly to an automatic ilber tube rolling machine wherein is combined a plurality cf mechanisms correlated and timed to automati- 5 cally deliver a tube' from a magazine and pass rolls to finish and remove same the same back. and forth through 'companion from its mandril or supporting rod.

The primary object of the invention is a design of machine that will quickly and eiiiciently direct the ber tubes back and forth between the nishing rolls and at time intervals give partial turning movements to the tubes to accomplish a uniform finishing action upon the entire outer sur-A face of the tubes.

An object of the invention resides in the novel v 0 particular groove may be accurately regulated and changed at will with the change-over vfrom one groove of the rolls to another groove accurately timed.

Another object of the invention is the provision of a machine that will subject a group of tubes to reciprocatory movements, periodically turn the tubes to obtain uniform action and automatically discharge the same as finished.

Another object of the invention relates to the adjustability of the machine 'for accommodating different lengths of tubes and tubes of various diameters.

A still further object of the invention is theV in the novel design of the manually set controls whereby the number of passages` of a tube through a predetermined groove can be deter-' Figure lisasidcelevation ofthemachinewith parts broken away. v

Figure 2 is a top plan view with parts removed.

Figure 3 is an end elevation looking toward the left hand end of the machine illustrated in i Figure l. y

Figure 4 is an enlarged plan view of the clutch mechanism illustrating parts in sections.

Figure 5 is a detailed sectional view adjacent to the feedl mechanism.

Figure 6 is a plan view of the guide roller.`

Figure'l is a vertical sectional view adjacent to the main rolls.

- Figure a is a demi sectional view o: :asserting device. 1 Figure 9 is a sectional view through the timing mechanism. v

Figure l0 isla cross sectional view of the'machine adjacent the timing mechanism.

Figure 11 is a side elevation of the timing mechanism.

Figure 12 is a side elevation of the timing mechanism.

Figure 13 is a diagrammatic view of a portion of the driving mechanism. f

Figure 14 is a diagrammatic view of a portion of the clutch mechanism.

Figure 15 is a plan view of the stop device.

Figure 16 is a cross sectional view through the feed mechanism. 30

Figure 17 is a cross sectional view adjacent the stop device.

Figure 18 is a vertical sectional view of the left head.

Figure 19 is a cross sectional view-of the machine adjacent one of the feeding mechanisms. Figure 20 is a longitudinal sectional view of the drive mechanism.

Figure 20a is a detailed sectional view of one end portion of the drive mechanism.

Figure 21 is a horizontal sectional view of a portion of the drive mechanism.

`Broadly stated, my invention consists of a. supporting frame upon which is mounted delivery mechanism which in turn is directly associated with duplex feeding mechanisms mounted for reciprocatory movements upon the supporting frame. These latter mechanisms are operated by a novel type of drive mechanism operated directly off of a prime mover such as a motor through loose and fast pulleys. This driving vmechanism includes a novel type of time mechanism. The `machine is completed by interrelating with the foregoing mechanisms rolling mechanism illustrated as companion rolls having in their peripheral surfaces a plurality of companion grooves.

Supporting frame Numeral I designates the supporting frame of the machine consisting of the bed 2 and the legs 3.

Rolling mechanism The rolling mechanism in this particular instance is illustrated as Acompanion rolls 4 and 5, the peripheral surfaces of which are provided with a plurality of companion grooves 5 of varying depths so as to subject a tube passing therethrough to progressive contracting actions in a radial direction with relation to the travel' of the tube. 'This action produces a smooth exterior surface and somewhat elongates the tube and besides releases same from its adhering contact with the mandril or supporting rod. As is well known in the art, fiber tubes are produced by winding a chemically treated length of paper upon a metal rod or mandril and finally drying the tube which causes the same to tightly adhere to the rod. Heretofore the tubes were manually removed from the rod by the manual operation of passing the tube back and forth between the rolls of a rolling mill until the tube was completely finished and loosened from the rod, after which the rod was manually forced from the tube by the operator. As heretofore stated, the main object of my invention is to pass the tube back and forth through the rolling mill mechanically, subjecting the tubes in their reciprocatory movements to a partial turning action to assure the accomplishment of a uniform action and removal of the tube from its rod.

The companion rolls 4 and 5 have a geanconnection with each other as indicated at 1, the gear connection being operated directly oif a gear train 8 that has a drive connection with a drive shaft 9. A gear train 3b operated olf of the gear connection 1 includes a friction gear Il having an operative engagement with the driving connection hereinafter set forth. The drive shaft 3 has mounted thereon companion driven gears II and I2 each carrying a clutch member I3 cooperating with a clutch collar I4 splined upon the drive shaft for selective movements into engagement with said members I3 so as to selectively drive the driven gears Il and I2 from the drive shaft 5. The clutch collar I4 has a sliding operative connection with a shift lever I5 pivoted at an intermediate point as indicated at I6 and having a forked end I1 engaging the manipulating rod I3. This rod I8 is slidably supported by a plate I3 provided with depressions 2l for selective engagement with a projection 2| on the end of the lever for mechanically holding the lever in either one of its two positions when shifted. Mounted on the manipulating rod Il are companion springs 22 abutting the shift lever so as to accomplish a more effective movement of the manipulating lever when the latter is periodically reciprocated in a manner hereinafter set forth.

Interconnected to the manipulating rod Il is a bell crank lever 23 which in turn has a pivotal connection 24 with the driving 'mechanism hereinafter described.

The driven gears II and I2 are loose upon the drive shaft and are in constant mesh with drive gears 25 and 25, mounted upon a drive shaft 21 that carries the drive pulley 23.

With the mechanism just described it will be appreciated that the grooved rolls 4 and 5 may be driven in opposite directions, to draw an object therebetween by the shifting of the clutch collar I4 which is accomplished automatically in the operation of the machine as hereinafter set forth.

Delivery mechanism The delivery mechanism comprises a' magazine, support table or hopper 29 of skeleton construction, in which a stock of tubes are placed for automatic feeding, one at a time, into operative relation with the duplex feeding 'mechanisms of my improved machine. This magazine 29 discharges on to runways 30 for directing the travel of the tube into operative engagement with the duplex feeding mechanisms.

For the purpose of automatically delivering the .tubes one at a time from the delivery mechanism in time relation with the travel of the companion mechanisms of the machine I have-illustrated a novel form of discharging means consisting of companion triggers 32 fixed to an operating shaft 33 supported by the magazine. These triggers 32 are provided with bills 34 directly related with the first tube so that in the swinging of the trigger, accomplished in a manner hereinafter set forth, the first tube will be elevated and discharged from the magazine and the succeeding tube held against movement until the trigger returns to normal position which enables the next tube to feed by gravitational action into position so that the tube that has assumedV the first position may be raised by another operation of the trigger. Secured to the shaft 33 is an arm 35 having a pivotal connection with the link 35 that is connected to a second arm 31.

loosely mounted on a fixed rod 38 supported by the frame of the machine. Arranged in parallel relation with the rod 33 is the actuating rod 3B operated in a novel-manner as hereinafter set forth and having directly secured thereto an arm 4l that in turn-A has a pivotal connection with the link 4| which also has a pivotal connection with the arm 31.

As far as I have proceeded it will be appreciated that in the movement of rod 39 the arm 31 will be swung in a predetermined direction for transmitting motion to shaft 33 through the arm 35 and link 35. The operation of shaft 33 will swing the trigger upwardly thereby displacing the rst tube so that the same may run along the runways into operative engagement with the companion feed mechanisms of the machine, the trigger holding the succeeding tubes against displacement until the trigger returns to normal position which is accomplished when the shaft 39 is returned to normal position.

The released tubevin reaching its final position upon the runways 'engages a support 42 which is designed to be displaced horizontally when the rod 33 is operated. To accomplish this desired result the support is provided with a bracket 43 having a swinging connection with the arms 31 and 4I and supporting a grooved roller 44, the grooves of which are adapted to align with the grooves in the rolls4 and 5. I wish to call attention to the fact that the grooves of the roll 44 are adapted to be shifted into alignment with different sets of grooves in the companion rolls 4 and 5 so that tubes as supported by the grooved rollv 44 may be first passed through one set of grooves of the companion rolls 4 and 5 and then through another set of grooves of the rolls 4 and 5 for the purpose hereinafter set forth.

Duplex feeding mechanisms The duplex feeding mechanisms include cooperatively operating heads hereinafter known as a left head 45 and a rightf head 45, tHe

former reciprocating the tubes towards. the lcom-Y panion rolls 4 and 5 in a right hand. direction whereas the latter reciprocates the tubes-through the rolls 4 and 5 in a left hand direction thereby enabling the tubes to be rapidly subjected to horizontal reciprocatory movements in their passagethrough the rolls 4 and 5.

As the companion heads 45 and 45 are of similar construction I will limit my description to the details of the "left" head designated by the numeral 45. A

Each head consists of companion arms 41 and 48, the former loosely mounted on the rod 88 and the latter iixed to the rod 88 so as to begiven swinging movement in the oscillatory movements of the rod 39. vA main link 45 provided with tube guiding holes 48h is pivotally connected to the arms so that the arms will swing in unison in the oscillatory movements of the rod 88. Pivotally connected to the arms 41 and 48 are the auxiliary arms 50 and 5l, these auxiliary arms having their intermediate portions connected to the arms 41 and 48 so that the opposite ends of the auxiliary arms may be free to swing in an arc of a circle. The lower ends of the auxiliary arms 55 and 5l are pivotally connected together by a secondary link 52 that has directly bolted thereto as indicated at 53 the lower jaw element 54 of the tube or rod gripper 55. The upper gripping element of the rod gripper' 55 is illustrated as a plurality of individual'jaws 55 slidably mounted lin the cross bar 51 that has its ends pivotally connected to the upper end of the auxiliary arms 50 and 5l. Each individual jaw 55 is yieldingly pressed toward the lower jaw element 44 by a spring 58 engaging a collar 58 on the stem 50 of theljaw and engaging under the cross bar 51. Mounted on the stem 68 are clamp nuts 5I which control resilient action of the jaws.

As far as I have proceeded it will be appreciated that in the swinging movements of the arms v41 and 48 the rod grip 55 can be displaced laterally for displacing the tubes laterally as a group for changing the relation of the grooves of the rolls 4 and 5 that are engaging the tubes. It will be noted that when the auxiliary arms 50 and 5I are swung upon the main arms 41 and 48 the cross bar and the secondary links will be reciprocated in opposite directions in relation to cach other thereby giving corresponding movements to the lower jaw element and the individual jaws which accomplishes a partial rotation of the rods or tubes engaged by the jaws. It is my desire to have the various parts of the heads so designed that in the movement thereof the tubes will be given a quarter turn individually and may be shifted as a group horizontally for changing re1- ative arrangement of the tubes and the grooves in the rolls 4 and 5.

For the purpose of accomplishing shifting of the auxiliary arms 50 and 5I automatically I have mounted upon the secondary link 52 a cam roller 62 adapted at the required intervals to engage two cams 1I and 12 upon the bed of the machine, each illustrated as an arm 55 having a cam shaped extremity 64. Attention is called to the fact that each arm 55 is pivotally connected to the bed 2 at the point. 63 so as to swing ina horizontal plane, a spring 55 urging the arm 65 to a normal position after the same has been displaced by the head due to the fact that tubes have not been completely received by the rolls 4 and 5--r the lhead' has* beens'hifted laterally by the shifting mechanism hereinhefore set forth.

For the purpose of shifting the rod grip 55 laterally for changing the aligning position of the tubes with the grooves in the rolls 4 and 5 I have provided the main arms 41 and 48 with a cam roller 51 on a connecting link 51h adapted to engage a second cam arm 58 provided with a cam shaped extremity 58. turning the jaw elements of the gripper to normal position after the same has been shifted by the cam arm 58 I have illustrated the cam arm 1| in horizontal alignment with the cam arm 68 so as to engage the cam roller 51 when the head has moved its required distance towards the rolls 4 and 5. When the cam roller 51 strikes cam arm l1I the sprim 55 will give until the tubes have been fed fromv the head by the action of the rolls 4 and 5 afterv which the spring wilLre-act to force the arm 1I to normal position andwith it the companion parts of the head.

As far as I have proceded it will be appreciated that the tube in moving down the runway will be brought in horizontal alignment with the gripper device of the left head so that in the forward movement of the head the ends of the rods upon -which the tubes are mounted are gripped and moved in a horizontal direction until engaged by the grooves of the rolls 4 and 5. When this has been accomplished the rolls 4 and 5 feed the tubes horizontally until engaged hy the Fright head. As the driving mechanism of the machine hereinafter described is operated in unison with the rotation ofthe rolls 4 and 5 it will be appreciated that just as soon as the ends of the rods upon which the tubes are mounted are engaged by the righ head the drive mechanism will drive the right head in a right handdirection. The righ head will continue to travel until its cam roller is engaged by a cam lever 13 similar to the cam lever heretofore described for shifting the jaw elements to give a partial turn to the tubes. After this has been For the purpose of reaccomplished the driving mechanism of the machine will reverse for again moving the tubes into engagement with the rolls 4 and 5. As the tubes leave the right head a cam 13b engaging the cam roller of the head will return the jaws of the head to normal position. As the tubes pass through the rolls 4 'and 5 they will be again' gripped by the left head and carried forwardly until the head reaches its normal position whereupon the tubes are again-given a quarter of a turn and passed back to the rolls 4 and 5. As set forth, the left head at stated intervals is shifted laterally for displacing the position of the tubes as a group in relation to the grooves of the rolls 4 and 5 so that the tubes will be passed through a new set of grooves for varying the action of the rolls 4 and 5 upon the tubes.

Arranged at the right hand end of the machine as illustrated in the drawings is an adjustably mounted stop plate 14 positioned to engage the ends of the rods 15 upon which the tubes 15 are formed so as to properly align the rods.

Drive mechanism The drive -mechanism consists ofa catch 11 slidably supported by each head and designed to have a stem 18 and a bill 18 that is provided with a cam surface 88. A spring 8| is arranged to constantly urge the jaw toward operative engagement with a rack bar 82 that is directly engaged by the friction gear I8.

The bill 19 is adapted to enter notch 83 in therack bar so that the catch and with it the head may be carried along with the rack bar and to prevent dis-engagement of the catch with the rack bar when moving therewith I have arranged the stem 18 in sliding relation with the inner wall 84 of the frame of the machine and engageable with the notch 85 in the frame when the dog has been moved to its normal position. As far as I have proceeded it will be appreciated that the inner engagement of the cam surface of the bill 19 with the rack bar will mechanically force the stem of the catch into engagement with the notch 85 when brought into registration therewith thereby disconnecting the head from the rack bar and enable the same to continue its movement for engagement with the opposite head. Attention is called to the fact that the pressure of the engagement between the cam surface and the rack bar 92 is slightly greater than the tension of the spring 8| so that the catch will be forced into the notch when the catch reaches a position in registration with the notch 85.

The rack bar 82 is slidably mountedin a tube 88 of rectangular configuration and fixed to the frame of the machine as shown in Figure 20. This tube 86 has slidably mounted on the opposite ends thereof a pair of brackets 81 and 88 that are connected together by a clutch rod 89 carrying a block 90 that has a pin and slot connection 9| with the bell crank lever 23. It will be noted that upon reciprocation of the clutch rod 89 the clutch mechanism through the bell crank lever 23 will be shifted alternately in opposite dil rections for alternately changing the direction of travel of the operating mechanism.

To accomplish the proper sliding action of the brackets 81 and 88 in time relation with the operating mechanism each bracketis provided with a dog 92 which is adapted to gravitate into operative engagement with a notch 93 in the rack bar 82 when the latter has traveled a predetermined distance. In otherwords, when the rack bar is about to complete its travel in eitherdirection' the notch 93operatively receives the dog 92 for giving about one-half inch travel to the block 90 which through the mechanism heretofore described manipulates the clutch device for reversing the direction of travel of the rack bar 82. Simultaneous with this action a .timing mechanism is set into operation for timing the number of passages of a tube through a particular groove of the rolls 4 and 5.

The timing mechanism consists of an arm S4 xed to the rod 89 and carrying a paw] 95 cooperatively associated with the rack bar 99. This rack bar 96 carries a head 91 related with a pin 98 that is slidably mounted in the support 99 carried by the frame of the machine. The pin 98 is urged outwardly by a spring |00, the head 91 forcing the pin inwardly against the action of the spring when the rack bar 96 is manipulated by the pawl' 95. A locking pawl |0| also engages the rack bar 96 to lock the same in its various positions when manipulated by the pawl 95.

Co-operatively associated with the head 91 is the set screw |02 of a setting device |03 which includes a block |04 slidably mounted on the support 99 through the means of a projection |05 that carries notches |06 associated with the catch |01 for adjusting the position of the set screw in relation to the head 91. Thus it will be appreciated that adjusting the set screw' |02 will iix the extent of movement of the head 91 as acted upon by the spring |08. As the head 91 directly engages the pin 98 it will be understood that the extent of travel of pin 98 is controlled by the movement of the rack bar. Fixed to the oscillating rod 39 is the lever |09 carrying a weight I I0 which when the lever is released in a manner hereinafter described forces the lever downwardly and thereby turns the rod 39. This lever |09 has an arm |0913 normally resting upon the pin 99 and thus it will be appreciated that when the pin has been fully retracted within its support the lever will be free to gravitate for giving turning movement to the rod 39 for the accomplishment of objectives heretofore set forth. The pawls and/IM are provided with projections and I|2 positioned directly under the weighted lever |09 so that in the downward movement thereof both pawls will be released from the rack bar for enabling the rack bar to return, through the action of the spring |08, to anormal position fixed by the setting of the set screw |02.

Complete cycle of operation Assuming that the clutch collar I4 is in engagement with driven gear settinginto operation drive shaft 21 will cause the driven shaft 9 to rotate in a predetermined direction which through the train of gear rotates the rolls 4 and 5 in a predetermined direction. Simultaneous with this action the friction gear I0 is giving a sliding movement to the rack bar 82. Assuming that rack bar 82 is traveling from the left to the right, the left hand notch 83 will receive the bill 19 of the catch of the left head with the result that the left head is moved towards the rolls 4 and 5. This motion of the left head will continue' until the catch 11 is forced into another notch 85 positioned in the frame contiguous to the rolls 4 and 5 by the coaction of the inclined surface 80 of the bill 19 and the inclined surface of the notch 83. This action causes dis-engagement between the catch 11 and the rack bar 82 with the result that further movement of the head is arrested without interfering with further movement of the rack bar. This allows the rack bar to continue its travel for bringing about an engagement thereof with the catch 11 of the right head for causing the same to travel from its position contiguous to the rolls 4 and 5 towards the right end of the machine. When the right head has travelled its limited distance to the right, dis-engagement is accomplished between its catch and the rack bar for arresting further movement of the right head by the rack bar.

Simultaneously with this action the bracket 81 is given a slight sliding movement by interengagement of the pawl 92 with the notch in the rack bar which causes the shifting of the bell crank lever 28 and the clutch mechanism'for reversing the direction of travel of the drive mechanism.

As the left head approaches its extreme right position the cam roller 61 engages cam 1| for displacing the jaw gripping elements laterally in relation to each other for giving a partial turn to the rods engaged thereby. In the nal movement of the left head the cam roller 62 will engage the second cam 69.with the result that the arms 41 and 48 will be returned to their normal vertical position after having been previously thrown to .an inclined position by the timing mechanism hereinbefore described. It is understood that in the movement of the left head to its extreme right position the cam roller 61 will engage the cam 1| for returning the gripping jaws to their normal position, the spring 12 delaying this action until the tube rods have completely left the head by the drawing action of the rolls 4 and 5. Attention is called to the fact that the cams 13 and '13b at the right of the machine are used solely for the purpose of shifting the position of the gripper jaws back and forth for giving partial turning movements to the tube rods, whereas the additional cam 89 at the left of the machine is utilized for returning the entire head to its. vertical upright position after the same has been displaced laterally by the timing mechanism for changing the,relative position of the tube rods and the grooves of the rolls 4 and .5.

In the movement of the clutch rod Il for shifting the direction of travel of the operating mechanism the rack bar 9B is operated by the pawl 95 and thus itwill be appreciated that in each shifting of the clutch mechanism the rack bar is moved for changing its position relative to the weighted lever |09 so that at the proper time the pin 98 will be dis-engaged with the arm lub for allowing the lever to drop and thereby turn the rod 39 for giving heretofore stated lateral displacement movements to the heads for changing the relative alignment of the tube rods with the grooves of the rolls 4 and 5. With the component parts of the timing mechanism and left head in the position Just mentioned, the left head travels to the left until the cam arm 68 engages the cam roller 6'! for throwing the entire head into normal upright vertical position for again receiving the gro`up of tubes that are passing through the rollers 4 and 5.

1n the shifting of the rod 3s the triggers sz are: operated for swinging the bills 34 upwardly for discharging a tube onto the runways for travel into engagement with the left traveling head. Thus it will be appreciated that one tube at a time is passed to the traveling heads in timed relation with the travel of the-heads so that the rods may be engaged one at a time by the traveling heads as the tubes one at a time are being discharged, a group of tubes being supported by the traveling heads at all times during the operation of the machine. Each tube in leaving the last groove of the rolls 4 and 5 is discharged to one side of the traveling left head with the result that the same may gravitate from operative engagement with the heads into a suitable receptacle.

Of course it is to be understood that the capacity of the machine vcan be considerably increased by varying the size of the heads and the number of tubes that may be supported thereby.

Of course it is vto be understood that the component mechanisms may be designed and arranged in' other relations than illustrated and the various elements of the associated mechanisms maybe constructed inother ways than illustrated and therefore I am not attempting to protect in this parent application the mechanical details of the component parts but the basic features consisting of grouping together a plurality of novel mechanisms in a new relation for the accomplishment of new results. Therefore I do not desire to be limited in protection in any manner whatsoever except as set forth in the following claims.

What I claim is:

.1. A fiber tube rolling machine comprising a supporting frame, rolling mechanism mounted thereon, delivery mechanism, feeding mechanism for receiving the tubes from the delivery mechanism and reciprocating the same through said rolling mechanism, and timing mechanism for timing the number of passages of the tubes through the rolling mechanism.

2. A fiber tube rolling machine comprising a supporting frame, rolling mechanism mounted thereon, delivery mechanism duplex feeding mechanisms on opposite sides of said rolling mechanism for receiving tubes from the delivery mechanism and reciprocate the same through said rolling mechanism, drive mechanism for operating the duplex feeding mechanisms and timing mechanism controlling the number of passages of the tubes through said rolling mechanism 1 3. A fiber tube rolling machine comprising a supporting frame, rolling mechanism mounted thereon, delivery mechanism, duplex feeding mechanisms on opposite sides of said rolling mechanism for receiving tubes from the delivery mechanism and reciprocate the same through said rolling mechanism, drive mechanism for operating theduplex feeding mechanisms, timing mechanism controlling the number of passages of the tubes through said rolling mechanism, and mechanism for partially turning the tubes during the reciprocatory movements thereof.

4. A fiber tube rolling machine comprising rolling mechanism, feeding mechanism for feeding tubes back and forth through the rolling mechanism and mechanism for timing the number of passages of the tubes through the rolling mechanism.

5. A fiber tube rolling machine comprising rolling mechanism, feeding mechanism for feeding tubes back and forth through the rolling mechanism, mechanism for timing the number of passages of the tubes through the rolling mechanism, and mechanism for giving turning motion to the tubes after a predetermined number of passages through said rolling mechanism.

6. A fiber tube rolling machine comprising rolling mechanism, feeding mechanism for passing tubes back and forth through the rolling mechanism, timing mechanism for determining the number of passages of the tubes through the rolly lng mechanism, and turning mechanism operatively related with the feeding mechanism for giving partial rotations to the tubes.

7. A fiber tube rolling machine comprising a supporting frame, rolling mechanism mounted thereon, reversible drive mechanism for the rolling mechanism, duplex feeding mechanisms operated by the said drive mechanism for feeding tubes back and forth through the rolling mechanism, and timing mechanism controlling the number of passages of the tubes through the rolling mechanism by said feeding mechanisms.

8. A ber tube rolling machine comprising a supporting frame, rolling -mechanism mounted thereon, reversible drive mechanism for the rolling mechanism, duplex feeding mechanisms operated by the said drive mechanism for feeding tubes back and forth through the rolling mechanism, timing mechanism controlling the number of passages of the tubes through the rolling mechanism by said feeding mechanisms, and means for giving partial turns to the tubes after a predetermined number of passages through said rolling mechanism.

9. A'ber tube rolling machine comprising a supporting frame, rolling mechanism mounted thereon, reversible drive mechanism for the rolling mechanism, duplex feeding mechanisms operated by the said drive mechanism for feeding tubes back and forth through the rolling mechanism, timing mechanism controlling the number of passages of the tubes through the rolling mechanism by said feeding mechanisms, means for giving partial turns to the tubes after a predetermined number of passages through said rolling mechanism, and discharge the tubes to one side of said rolling mechanism.

10. A ber tube rolling machine comprising in combination a pair of rolls having a plurality of aligning grooves in the peripheral surface thereof, duplex feeding mechanism for feeding tubes back and forth through said grooves, and timing mechanism for shifting the relation of the tubes and said grooves.

11. A ber tube rolling machine comprising in combination a pair of rolls having a plurality of aligning grooves in the peripheral surface thereof, duplex feeding mechanism for feeding tubes back and forth through said grooves, timing mechanism for shifting the relation of the tubes and said grooves, and means for giving a partial turn to the tubes before their passage through said grooves.

12. A fiber tube rolling machine comprising in combination a pair of rolls having a set of grooves in their peripheral surfaces, duplex feeding mechanisms feeding a tube through the rst groove, timing mechanism co-operating with the feeding mechanisms for shiftingv the tube progressively into engagement with the grooves of the rolls, until discharged from the machine as leaving the last groove in the rolls.

13. A ber tube rolling machine comprising a pair of rolls each having in its peripheral surface horizontally aligned grooves, the grooves of one roll having a matching relation with the grooves of the other roll, mechanism for selectively passing a tube through said grooves progressively, and mechanism for timing the number of passages of the tube through any one particular groove.

14. A ber tube rolling machine comprising a pair of rolls each having in its peripheral surface horizontally aligned grooves, the grooves of one roll having a matching relation with the grooves of the other roll, mechanism for selectively passing a tube through said grooves progressively, mechanism for timing the number of passages of the tube through any one particular groove.

and means for giving a partial turn to the tube before its passage through said grooves.

15. A ber tube rolling machine comprising a pair of rolls each having in its peripheral surface horizontally aligned grooves, the grooves of one roll having a matching relation with the grooves of the other roll, mechanism for selectively passing a tube through said grooves progressively, mechanism for timing the number of passages of the tube through any one particular groove, means for giving a partial turn to the tube before -its passage through said grooves, the last grooves of said rolls discharging the tube from the machine.

16. A fiber tube rolling machine comprising rolling mechanism, duplex feeding mechanisms including companion grippers for gripping the tubes and reciprocating the same through said rolling mechanism, and timing mechanism operating on said grippers to shift the same laterally for changing the position of the tubes with relation to said rolling mechanisms.

17. A ber tube rolling machine comprising rolling mechanism, duplex feeding mechanisms including companion grippers for grippingA the tubes and reciprocating the same through said rolling mechanism, timing operating on said grippers to shift the same laterally for changing the position of the tubes with relation to said rolling mechanisms, 'and mechanisms cooperating with said timing mechanism for periodically giving turning movements to the tubes.

18. A ber tube rolling machine comprising rolling mechanism, means for driving said mechanism in opposite directions, feeding mechanism for feeding tubes to either side of said rolling mechanism thereby giving reciprocatory movements to the tubes, manually set mechanism for determining the number of passages of tubes through said rolling mechanism, and mechanism for periodically turning the tubes in their reciprocatory movements.

19. A ber tube rolling machine comprising rolling mechanism, a pair of companion slidably mounted feed mechanisms disposed respectively on opposite sides of said rolling mechanism, drive mechanism periodically engaging said feed mechanisms to slide the same according to the travel of said rolling mechanism, and means for discharging a tube from the rolling mechanism as completed.

20. A fiber tube rolling machine comprising rolling mechanism, reversible drive mechanism, a pair of companion feeding heads for feeding tubes back and forth through said rolling mechanism, and a control connection between said heads and said drive mechanism whereby said drive mechanism is reversed in the movements of the said heads Atowards and away from the rolling mechanism.

2l. A ber tube rolling machine comprising rolling mechanism, reversible drive mechanism for operating said rolling mechanism, a pair of companion feeding heads for feeding tubes back and forth through said rolling mechanism, a control connection between said heads and said drive mechanism whereby said drive mechanism is reversed in the movements of the said heads towards and away from the rolling mechanism, and timing mechanism set into operation according to the position of said heads for displacing the latter in a direction axially of the rolling mechanism.

22. A ber tube rolling machine comprising a pair of rolls, reversible drive mechanism therefor, a pair of tube supporting heads operated directly off said drive mechanism for movements toward and away from said rolls.

23. A fiber tube rolling machine comprising a pair of rolls, reversible drive mechanism therefor, a pair of tube supporting heads operated directly off said drive mechanism for movements toward and away from said rolls, and control mechanism between said heads and said drive mechanism whereby the direction of travel of said drive mechanism may be changed according to the position of said heads.

. 24. A ber tube rolling machine comprising a pair of rolls, reversible drive mechanism therefor, a pair of tube supporting heads operated directly off said drive mechanism for movements toward and away from said rolls, control mechanism between said heads and said drive mechanism whereby the direction of travel of said drive mechanism maybe changed according to the position of said heads, and timing mechanism for giving displaceable movement to said heads relative to said rolls according to the position of the heads in relation to the rolls.

25. A ber tube rolling machine comprising a Pair 0f rolls, a pair of slidably mounted heads CII 

